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Switching Pattern Improvement for One-Cycle Zero-Integral-Error Current Controller
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DOI：10.1109/ACCESS.2021.3137758.png)
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Abstract
En 中文
The one-cycle current control is a non-linear technique based on the cycle-by-cycle calculation of the ON time of the power converter switches. Its application is not common in tracking fast-changing reference currents, due to the necessity of fast and accurate measurements, and high-speed computing. In a previous study, a one-cycle digital current controller based on the minimization of the integral error of the current was developed and applied to the control of a three-phase shunt active power filter. In the present work, the one-cycle controller has been improved by proposing a new switching pattern. It allows an easy implementation that reduces the critical computational cost and avoids the main drawbacks of the previous implementation. The controller has been applied in a three-leg four-wire shunt active power filter, including a stability analysis considering the proposed switching pattern. Simulated and experimental results are presented to validate the proposed controller.
Keywords:
Switches
Control systems
Current control
Stability analysis
Optimization
Active filters
Minimization
Current control
power converters
one-cycle controller
active filters
power quality
Journal
IF:
3.6
Papers:
9.8W
Citations:
29.4W
Organization
Cited Papers
Performance Enhancement of Shunt Active Power Filter Using a Kalman Filter-Based H∞ Control Strategy
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